I once woke up from a nap that overtook me and it was twilight and I didn't know if it was ten on a summer evening or seven in the morning in the middle of winter.

You need a power nap to feel that way?

Hell, that describes my last 30 years of existence.

"The clock says three. But there's light outside? What the fuck is going on with the clock? Am I late for work or can I sleep a little longer?"

-me at 3 PM on a Sunday after waking up from a post-lunch nap

I woke up from a surprisingly long nap at sunset, and thought it was sunrise. Went through my morning routine, got my coffee, and noticed it was getting darker outside.